CY25402SXI-017

Clock Generators, PLLs, Frequency Synthesizers Overview

The CY25402SXI-017 is a factory-programmable, two-PLL clock generator with spread spectrum capability in an 8-pin SOIC package. It supports crystal inputs from 8 to 48 MHz or external reference clocks from 8 to 166 MHz. The device operates at VDD voltages of 2.5 V, 3.0 V, or 3.3 V and generates output frequencies ranging from 3 to 166 MHz. It features glitch-free frequency switching via programmable dividers, four selectable frequency settings per PLL, and configurable drive strength levels. The component includes power-down and output enable controls, supporting industrial temperature ranges from -40 °C to +85 °C.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Dual fully integrated phase-locked loops for synthesizing independent frequencies
• Programmable spread spectrum modulation for EMI reduction
• Glitch-free frequency switching using output dividers
• Configurable output drive strength and multifunction control pins

Clock Generators, PLLs, Frequency Synthesizers Applications

• PC and consumer electronics clock generation
• Portable device system timing
• Networking equipment synchronization

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific suffix '017' against official Cypress documentation to confirm the exact factory-programmed configuration parameters. Confirm that the ordering code matches the required voltage and temperature specifications. Ensure compatibility with the intended crystal or external clock source before procurement.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when dual independent clock outputs are required from a single reference source. Verify that the input frequency range (8–48 MHz crystal or 8–166 MHz clock) aligns with the system design. Ensure the target operating voltage (2.5 V, 3.0 V, or 3.3 V) matches the board supply rails. Consider the 8-pin SOIC package constraints for layout.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This part belongs to the CY25402/CY25422/CY25482 family of two-PLL programmable clock generators. While the CY25422 operates at 1.8 V and the CY25482 lacks crystal input support, the CY25402 specifically supports high-voltage operation and crystal inputs. The 'SXI' designation indicates an 8-pin SOIC package with industrial temperature rating (-40 °C to +85 °C).

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct replacements within the same family include the CY25402SXIT (tape and reel version) or other factory-programmed variants like CY25402SXC-xxx for commercial temperature ranges. Cross-family replacement requires verifying PLL count, voltage compatibility, and package dimensions.